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Protein crystallography using a multilayer monochromator.

A M Deacon1, T Appleby, D H Bilderback

  • 1Department of Biochemistry, Molecular and Cell Biology, Cornell University, Ithaca, NY 14850, USA.

Journal of Synchrotron Radiation
|July 21, 2004
PubMed
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Multilayer monochromators provide a pseudo-monochromatic X-ray beam for protein crystallography. This technology enables rapid structure determination of macromolecules with good quality data.

Area of Science:

  • Crystallography
  • Materials Science
  • Biophysics

Background:

  • Synchrotron radiation sources are crucial for X-ray crystallography.
  • Multilayer monochromators offer unique properties for X-ray beam manipulation.

Purpose of the Study:

  • To evaluate the performance of a multilayer monochromator for protein crystallography at CHESS.
  • To assess the feasibility of using this setup for rapid macromolecular structure determination.

Main Methods:

  • Installation of a multilayer monochromator on a bending-magnet beamline.
  • Collection of X-ray diffraction datasets from lysozyme and human methylthioadenosine phosphorylase.
  • Processing of diffraction data using standard monochromatic software.

Main Results:

Related Experiment Videos

  • A pseudo-monochromatic X-ray beam was successfully generated.
  • Short exposure times were achieved due to the wide energy bandpass.
  • Good quality datasets were obtained, comparable to those from focused beamlines.

Conclusions:

  • Multilayer monochromators are suitable for protein crystallography experiments.
  • This technology facilitates rapid structure determination of macromolecules.
  • The system is readily applicable to typical-sized macromolecular crystallography studies.